113312202120 has 96 divisors (see below), whose sum is σ = 396592723800. Its totient is φ = 27892233216.

The previous prime is 113312202089. The next prime is 113312202121. The reversal of 113312202120 is 21202213311.

113312202120 is a `hidden beast` number, since 11 + 331 + 2 + 202 + 120 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 74067799716 + 39244402404 = 272154^2 + 198102^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 113312202093 and 113312202102.

It is not an unprimeable number, because it can be changed into a prime (113312202121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12101325 + ... + 12110684.

Almost surely, 2^113312202120 is an apocalyptic number.

113312202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113312202120 is an abundant number, since it is smaller than the sum of its proper divisors (283280521680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113312202120 is a wasteful number, since it uses less digits than its factorization.

113312202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24212039 (or 24212032 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 113312202120 its reverse (21202213311), we get a palindrome (134514415431).

The spelling of 113312202120 in words is "one hundred thirteen billion, three hundred twelve million, two hundred two thousand, one hundred twenty".